The fuselage of the NBO-105 CB/CBS both of lightweight semi monocoque aluminium construction with non stressed part of fiberglass reinforced plastic. The difference between the CB and CBS is a 10 inch (25cm) stretch ("S") in the cabin of the CBS model.
The main features of the Varians's NBO-105 CB/CBS multi purpose helicopters are :
The hingeless rotor "System Bolkow" with titanium rotor head, fiberglass reinforced plastic main rotor blades, with anti-erosion strips.
The high set semi-rigid two bladed tail rotor with fiberglass reinforced plastic tail rotor blades, with anti-erosion strips.
Twin engine safety using two Allison 250-C20CB gas tubines.
Practical and modern airframe with spacious cabin and large cargo compartment.